Source/modules/filesystem/DraggedIsolatedFileSystem.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 * in the documentation and/or other materials provided with the
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "modules/filesystem/DraggedIsolatedFileSystem.h"

#include "core/dom/ExecutionContext.h"
#include "modules/filesystem/DOMFileSystem.h"
#include "platform/Supplementable.h"
#include "platform/weborigin/SecurityOrigin.h"
#include "wtf/MainThread.h"

namespace blink {

DraggedIsolatedFileSystem::~DraggedIsolatedFileSystem()
{
}

DOMFileSystem* DraggedIsolatedFileSystem::getDOMFileSystem(DataObject* host, ExecutionContext* executionContext)
{
    DraggedIsolatedFileSystem* draggedIsolatedFileSystem = from(host);
    if (!draggedIsolatedFileSystem)
        return 0;
    if (!draggedIsolatedFileSystem->m_filesystem)
        draggedIsolatedFileSystem->m_filesystem = DOMFileSystem::createIsolatedFileSystem(executionContext, host->filesystemId());
    return draggedIsolatedFileSystem->m_filesystem.get();
}

// static
const char* DraggedIsolatedFileSystem::supplementName()
{
    ASSERT(isMainThread());
    return "DraggedIsolatedFileSystem";
}

DraggedIsolatedFileSystem* DraggedIsolatedFileSystem::from(DataObject* dataObject)
{
    return static_cast<DraggedIsolatedFileSystem*>(WillBeHeapSupplement<DataObject>::from(dataObject, supplementName()));
}

DraggedIsolatedFileSystem::DraggedIsolatedFileSystem(DataObject& host, const String& filesystemId)
{
    host.setFilesystemId(filesystemId);
}

void DraggedIsolatedFileSystem::trace(Visitor* visitor)
{
    visitor->trace(m_filesystem);
    WillBeHeapSupplement<DataObject>::trace(visitor);
}

} // namespace blink